279617920

素因数分解:

$2^7\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1217}}^1$

素因数の和:1595

約数の個数: 64

約数和(自身を含む): 670874400

約数和(自身を除く): 391256480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 359, 640, 718, 1217, 1436, 1795, 2434, 2872, 3590, 4868, 5744, 6085, 7180, 9736, 11488, 12170, 14360, 19472, 22976, 24340, 28720, 38944, 45952, 48680, 57440, 77888, 97360, 114880, 155776, 194720, 229760, 389440, 436903, 778880, 873806, 1747612, 2184515, 3495224, 4369030, 6990448, 8738060, 13980896, 17476120, 27961792, 34952240, 55923584, 69904480, 139808960, 279617920]

約数ペア:

[(1, 279617920), (2, 139808960), (4, 69904480), (5, 55923584), (8, 34952240), (10, 27961792), (16, 17476120), (20, 13980896), (32, 8738060), (40, 6990448), (64, 4369030), (80, 3495224), (128, 2184515), (160, 1747612), (320, 873806), (359, 778880), (640, 436903), (718, 389440), (1217, 229760), (1436, 194720), (1795, 155776), (2434, 114880), (2872, 97360), (3590, 77888), (4868, 57440), (5744, 48680), (6085, 45952), (7180, 38944), (9736, 28720), (11488, 24340), (12170, 22976), (14360, 19472)]